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From the abacus to the computer, how to count?

As we informed in the previous number, the pupil of France was working in the realization of a web page. We can already see the result of their work visiting their page (http://www.ecl-alma.com/coll%E8ge.htm)

As the own students recognize, it is a bit special school task. It is dedicated to the progresses and mathematical inventions that there have been from the XVII century to the XIX one. The work is concretely on "From the abacus to the computer, how to count? " In this web we can find, between other topics:

• Biography of Ada Byron: pioneer in programming and calculation
• Evolution of the calculation techniques: from the use of the stones and the fingers of the hand to count in base 5 until Charle Babbge, mathematical and inventor of the machine that was precursor of the current computer: "the analytic machine" (digital analytic calculator)
• History of the computer